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ClownacyandClownacy
16345dfdd0
* Use custom file IO callbacks for libraries: libzip, 7zip, libchdr, and stb_image. * Add file IO indirection. * Add libretro VFS implementation. --------- Co-authored-by: Clownacy <[email protected]>
55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
#pragma once
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#include <utility>
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#include <libchdr/chd.h>
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#include "oslib/storage.h"
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namespace CHD
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{
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namespace Callbacks
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{
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// Moved out here to avoid being duplicated by the template.
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inline uint64_t fsize(struct chd_core_file *core_file)
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{
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auto file = static_cast<hostfs::File*>(core_file->argp);
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return file->size();
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}
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inline size_t fread(void* buffer, size_t size, size_t count, struct chd_core_file *core_file)
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{
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auto file = static_cast<hostfs::File*>(core_file->argp);
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return file->read(buffer, size, count);
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}
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inline int fclose(struct chd_core_file *core_file)
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{
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auto file = static_cast<hostfs::File*>(core_file->argp);
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delete file;
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delete core_file;
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return 0;
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}
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inline int fseek(struct chd_core_file *core_file, int64_t offset, int whence)
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{
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auto file = static_cast<hostfs::File*>(core_file->argp);
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return file->seek(offset, whence);
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}
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}
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}
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template<typename... Ts>
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inline auto chd_open_file(hostfs::File *file, Ts &&...args)
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{
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auto core_file = new struct chd_core_file();
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core_file->argp = file;
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core_file->fsize = CHD::Callbacks::fsize;
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core_file->fread = CHD::Callbacks::fread;
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core_file->fclose = CHD::Callbacks::fclose;
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core_file->fseek = CHD::Callbacks::fseek;
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return chd_open_core_file(core_file, std::forward<Ts>(args)...);
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}
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